National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair and Windy

54°F

12°C

Humidity 69%
Wind Speed SW 33 G 52 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 30 Mar 1:56 pm EDT
Extended Forecast for

South Dennis MA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 54. Southwest wind around 16 mph, with gusts as high as 34 mph.

    High: 54 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of rain before 8pm, then a chance of rain after midnight. Mostly cloudy, with a low around 43. Southwest wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 43 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: Rain likely, mainly before noon. Cloudy, with a high near 52. Southwest wind 10 to 14 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 44. Southwest wind 8 to 13 mph, with gusts as high as 28 mph.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 55. Southwest wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    High: 55 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly between 8pm and 2am. Cloudy, with a low around 37. West wind around 7 mph becoming northeast after midnight. Chance of precipitation is 60%.

    Low: 37 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain. Cloudy, with a high near 45. Northeast wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    High: 45 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain. Cloudy, with a low around 37. East wind around 7 mph. Chance of precipitation is 40%.

    Low: 37 °F

    Chance Rain

  • Friday

    Friday: A chance of rain. Cloudy, with a high near 51. Southwest wind 6 to 9 mph. Chance of precipitation is 30%.

    High: 51 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 54. Southwest wind around 16 mph, with gusts as high as 34 mph.
Tonight
A slight chance of rain before 8pm, then a chance of rain after midnight. Mostly cloudy, with a low around 43. Southwest wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday
Rain likely, mainly before noon. Cloudy, with a high near 52. Southwest wind 10 to 14 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Mostly cloudy, with a low around 44. Southwest wind 8 to 13 mph, with gusts as high as 28 mph.
Wednesday
A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 55. Southwest wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Wednesday Night
Rain likely, mainly between 8pm and 2am. Cloudy, with a low around 37. West wind around 7 mph becoming northeast after midnight. Chance of precipitation is 60%.
Thursday
A chance of rain. Cloudy, with a high near 45. Northeast wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Thursday Night
A chance of rain. Cloudy, with a low around 37. East wind around 7 mph. Chance of precipitation is 40%.
Friday
A chance of rain. Cloudy, with a high near 51. Southwest wind 6 to 9 mph. Chance of precipitation is 30%.
Friday Night
A chance of rain. Cloudy, with a low around 40. Southwest wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Saturday
A chance of rain. Mostly cloudy, with a high near 49. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday Night
A chance of rain. Cloudy, with a low around 39. East wind around 7 mph. Chance of precipitation is 30%.
Sunday
A chance of rain. Cloudy, with a high near 54. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
10:14 am EDT Mar 30, 2026
Forecast Valid:
2pm EDT Mar 30, 2026-6pm EDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation